Coffee Journal

Kenya AA vs. AB vs. PB: What Coffee Grades Actually Mean

Kenya grades by bean size, not quality. AA is the largest. But a well-sourced AB from an excellent washing station can outperform a mediocre AA. Here's what actually matters.

The Master Index: 30 Pillars of Specialty Coffee Clarity

Welcome to the summit of the pursuit of clarity. This Master Index organizes our 30-pillar technical series into a navigable framework for the 2026 connoisseur. Whether you are seeking to understan...

The Kenya Coffee Grading System: Understanding AA, AB, and PB Lots

While Ethiopia is the birthplace, Kenya is the technical powerhouse of the Rift Valley. In this deep dive, we decode the rigorous grading system used by the Nairobi Coffee Exchange: from the presti...